diff --git a/examples/docker-flask/app.py b/examples/docker-flask/app.py
index 7febda9..dc66b3f 100644
--- a/examples/docker-flask/app.py
+++ b/examples/docker-flask/app.py
@@ -1,8 +1,5 @@
-import escpos
-from escpos.printer import *
-from flask import Flask, jsonify, request, redirect, session, url_for
-import sys
-from io import BytesIO
+from escpos.printer import CupsPrinter
+from flask import Flask
 
 # Initialize Flask app
 app = Flask(__name__)
diff --git a/src/escpos/escpos.py b/src/escpos/escpos.py
index 3b30879..57761fe 100644
--- a/src/escpos/escpos.py
+++ b/src/escpos/escpos.py
@@ -84,7 +84,7 @@ from .magicencode import MagicEncode
 
 from abc import ABCMeta, abstractmethod  # abstract base class support
 from escpos.image import EscposImage
-from escpos.capabilities import get_profile, BARCODE_B
+from escpos.capabilities import get_profile
 
 
 # Remove special characters and whitespaces of the supported barcode names,